Thread
:
more fun
View Single Post
#
9
February 24th 09, 07:30 PM posted to uk.sci.weather
Graham P Davis
external usenet poster
First recorded activity by Weather-Banter: Oct 2004
Posts: 4,814
more fun
Harold Brooks wrote:
In article ,
says...
Is this a mis-print do you think? .....
" So if European leaders want to tell me that 2 ppm increase in a
trace gas ( that is 2 parts per million) is worth destroying mans
advance in lifestyle, (etc.) "
The CO2 global level in the early 1800s is put at around 280 ppmv, and
most researchers regard that (based on ice core studies) as having
been a stable figure for many centuries (millennia?) beforehand -
though of course a great distance back in time, much higher levels of
CO2 have been described.
In 1958, the start of the Mauna Loa record, the figure is ~315 ppmv
(parts per million by volume).
In 2000, the figure is ~367 ppmv
Latest figure is ~385 ppmv.
I make that an increase from roughly 'pre-industrial' of 105 ppmv
(+37%), and within the internally consistent Mauna Loa record, an
increase of (385-315 =) 70 ppmv, or ~22% over the past half-century.
Or have I mis-interpreted the original article?
Martin.
You interpreted Joe's article correctly. It appears that, shockingly,
Joe either completely made something up or made a large error.
Seems to fit the pattern of his previous article where he said the warming
of the air followed the change to a warmer PDO whereas it was the other way
round.
--
Graham P Davis, Bracknell, Berks., UK. E-mail: newsman not newsboy
Reply With Quote
Graham P Davis
View Public Profile
Find all posts by Graham P Davis